MadGraph5_aMC@NLO

New issues with dipole operator from FeynRules

Asked by Joel Jones

Dear MadGraph,

This is a follow-up to https://answers.launchpad.net/mg5amcnlo/+question/696199

As mentioned earlier, have taken the heavyN FeynRules model and added a dim-5 dipole operator. In MadGraph v2.7.3, I can execute the following command without a problem:

import model heavyNeff4_UFO --modelname
generate n5 > all all
output Test1

I then go to Test1 and run MadEvent, executing calculate_decay_widths . The code works, and I get a result.

If I do the same in MadGraph v2.9.2, there is a problem when executing "output Test1", with MadGraph crashing:

MG5_aMC>output Test1
INFO: initialize a new directory: Test1
INFO: remove old information in Test1
INFO: Generating Helas calls for process: n5 > ve z QNP<=2 @1
INFO: Processing color information for process: n5 > ve z QNP<=2 @1
INFO: Generating Helas calls for process: n5 > vm z QNP<=2 @1
INFO: Reusing existing color information for process: n5 > vm z QNP<=2 @1
INFO: Generating Helas calls for process: n5 > vt z QNP<=2 @1
INFO: Reusing existing color information for process: n5 > vt z QNP<=2 @1
INFO: Generating Helas calls for process: n5 > a ve QNP<=2 @1
INFO: Processing color information for process: n5 > a ve QNP<=2 @1
INFO: Generating Helas calls for process: n5 > a vm QNP<=2 @1
INFO: Reusing existing color information for process: n5 > a vm QNP<=2 @1
INFO: Generating Helas calls for process: n5 > a vt QNP<=2 @1
INFO: Reusing existing color information for process: n5 > a vt QNP<=2 @1
INFO: Generating Helas calls for process: n5 > a n4 QNP<=2 @1
INFO: Reusing existing color information for process: n5 > a n4 QNP<=2 @1
INFO: Generating Helas calls for process: n5 > a n6 QNP<=2 @1
INFO: Reusing existing color information for process: n5 > a n6 QNP<=2 @1
INFO: Generating Helas calls for process: n5 > ve h QNP<=2 @1
INFO: Reusing existing color information for process: n5 > ve h QNP<=2 @1
INFO: Generating Helas calls for process: n5 > vm h QNP<=2 @1
INFO: Reusing existing color information for process: n5 > vm h QNP<=2 @1
INFO: Generating Helas calls for process: n5 > vt h QNP<=2 @1
INFO: Reusing existing color information for process: n5 > vt h QNP<=2 @1
INFO: Generating Helas calls for process: n5 > e- w+ QNP<=2 @1
INFO: Reusing existing color information for process: n5 > e- w+ QNP<=2 @1
INFO: Generating Helas calls for process: n5 > mu- w+ QNP<=2 @1
INFO: Reusing existing color information for process: n5 > mu- w+ QNP<=2 @1
INFO: Generating Helas calls for process: n5 > ta- w+ QNP<=2 @1
INFO: Reusing existing color information for process: n5 > ta- w+ QNP<=2 @1
INFO: Generating Helas calls for process: n5 > e+ w- QNP<=2 @1
INFO: Reusing existing color information for process: n5 > e+ w- QNP<=2 @1
INFO: Generating Helas calls for process: n5 > mu+ w- QNP<=2 @1
INFO: Reusing existing color information for process: n5 > mu+ w- QNP<=2 @1
INFO: Generating Helas calls for process: n5 > ta+ w- QNP<=2 @1
INFO: Reusing existing color information for process: n5 > ta+ w- QNP<=2 @1
INFO: Generating Helas calls for process: n5 > z n4 QNP<=2 @1
INFO: Reusing existing color information for process: n5 > z n4 QNP<=2 @1
INFO: Generating Helas calls for process: n5 > z n6 QNP<=2 @1
INFO: Reusing existing color information for process: n5 > z n6 QNP<=2 @1
INFO: Generating Helas calls for process: n5 > h n4 QNP<=2 @1
INFO: Reusing existing color information for process: n5 > h n4 QNP<=2 @1
INFO: Generating Helas calls for process: n5 > h n5 QNP<=2 @1
INFO: Reusing existing color information for process: n5 > h n5 QNP<=2 @1
INFO: Generating Helas calls for process: n5 > h n6 QNP<=2 @1
INFO: Reusing existing color information for process: n5 > h n6 QNP<=2 @1
INFO: Creating files in directory P1_n5_vez
INFO: Generating Feynman diagrams for Process: n5 > ve z QNP<=2 @1
INFO: Creating files in directory P1_n5_vmz
INFO: Generating Feynman diagrams for Process: n5 > vm z QNP<=2 @1
INFO: Creating files in directory P1_n5_vtz
INFO: Generating Feynman diagrams for Process: n5 > vt z QNP<=2 @1
INFO: Creating files in directory P1_n5_ave
INFO: Generating Feynman diagrams for Process: n5 > a ve QNP<=2 @1
INFO: Creating files in directory P1_n5_avm
INFO: Generating Feynman diagrams for Process: n5 > a vm QNP<=2 @1
INFO: Creating files in directory P1_n5_avt
INFO: Generating Feynman diagrams for Process: n5 > a vt QNP<=2 @1
INFO: Creating files in directory P1_n5_an4
INFO: Generating Feynman diagrams for Process: n5 > a n4 QNP<=2 @1
INFO: Creating files in directory P1_n5_an6
INFO: Generating Feynman diagrams for Process: n5 > a n6 QNP<=2 @1
INFO: Creating files in directory P1_n5_veh
INFO: Generating Feynman diagrams for Process: n5 > ve h QNP<=2 @1
INFO: Creating files in directory P1_n5_vmh
INFO: Generating Feynman diagrams for Process: n5 > vm h QNP<=2 @1
INFO: Creating files in directory P1_n5_vth
INFO: Generating Feynman diagrams for Process: n5 > vt h QNP<=2 @1
INFO: Creating files in directory P1_n5_emwp
INFO: Generating Feynman diagrams for Process: n5 > e- w+ QNP<=2 @1
INFO: Creating files in directory P1_n5_mumwp
INFO: Generating Feynman diagrams for Process: n5 > mu- w+ QNP<=2 @1
INFO: Creating files in directory P1_n5_tamwp
INFO: Generating Feynman diagrams for Process: n5 > ta- w+ QNP<=2 @1
INFO: Creating files in directory P1_n5_epwm
INFO: Generating Feynman diagrams for Process: n5 > e+ w- QNP<=2 @1
INFO: Creating files in directory P1_n5_mupwm
INFO: Generating Feynman diagrams for Process: n5 > mu+ w- QNP<=2 @1
INFO: Creating files in directory P1_n5_tapwm
INFO: Generating Feynman diagrams for Process: n5 > ta+ w- QNP<=2 @1
INFO: Creating files in directory P1_n5_zn4
INFO: Generating Feynman diagrams for Process: n5 > z n4 QNP<=2 @1
INFO: Creating files in directory P1_n5_zn6
INFO: Generating Feynman diagrams for Process: n5 > z n6 QNP<=2 @1
INFO: Creating files in directory P1_n5_hn4
INFO: Generating Feynman diagrams for Process: n5 > h n4 QNP<=2 @1
INFO: Creating files in directory P1_n5_hn5
INFO: Generating Feynman diagrams for Process: n5 > h n5 QNP<=2 @1
INFO: Creating files in directory P1_n5_hn6
INFO: Generating Feynman diagrams for Process: n5 > h n6 QNP<=2 @1
Generated helas calls for 22 subprocesses (25 diagrams) in 0.023 s
Wrote files for 91 helas calls in 0.399 s
Fatal Python error: _Py_CheckRecursiveCall: Cannot recover from stack overflow.
Python runtime state: initialized

Thread 0x00007f3fc67d5640 (most recent call first):
  File "/usr/lib64/python3.9/threading.py", line 312 in wait
  File "/usr/lib64/python3.9/queue.py", line 171 in get
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/madgraph/various/cluster.py", line 631 in worker
  File "/usr/lib64/python3.9/threading.py", line 892 in run
  File "/usr/lib64/python3.9/threading.py", line 954 in _bootstrap_inner
  File "/usr/lib64/python3.9/threading.py", line 912 in _bootstrap

Current thread 0x00007f3fd4e47740 (most recent call first):
  File "<frozen importlib._bootstrap_external>", line 64 in <listcomp>
  File "<frozen importlib._bootstrap_external>", line 64 in _path_join
  File "<frozen importlib._bootstrap_external>", line 369 in cache_from_source
  File "<frozen importlib._bootstrap_external>", line 434 in _get_cached
  File "<frozen importlib._bootstrap>", line 391 in cached
  File "<frozen importlib._bootstrap>", line 550 in _init_module_attrs
  File "<frozen importlib._bootstrap>", line 571 in module_from_spec
  File "<frozen importlib._bootstrap>", line 666 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 986 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1007 in _find_and_load
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/heavyNeff4/particles.py", line 10 in <module>
  File "<frozen importlib._bootstrap>", line 228 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 790 in exec_module
  File "<frozen importlib._bootstrap>", line 680 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 986 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1007 in _find_and_load
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/heavyNeff4/__init__.py", line 3 in <module>
  File "<frozen importlib._bootstrap>", line 228 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 790 in exec_module
  File "<frozen importlib._bootstrap>", line 680 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 986 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 1007 in _find_and_load
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 44 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  File "/home/jjones/Programs/MG5_aMC_v2_9_2/models/__init__.py", line 52 in load_model
  ...
[jjones@arrakis MG5_aMC_v2_9_2]$

Any clues to what might be happening?

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

issue tracked in the bug report, so putting it here as solved (a solution should be provided in the bug report if I remember correctly)